I have similar problems with eBay messaging system and messages frame gets blocked for as long it detect Adblock plug-in loaded.
I can only think one workaround and suggest it to developers team.
Adblock Plus will install two icons at Firefox navigation bar, one of them will be a shortcut for deactivation equal to what it happens at Tools -> Add-on -> panel.
Then first click at normal Adblock Plus icon this will reactivate it.
The all concept this is a more hassle free deactivation at a time visiting of a problematic in policies website.